There were peaks at 22[degrees] and 28[degrees] in P-nZVI, which are associated with mineral dachiardite
(Ca, Na, K, Al, Si and [H.sub.2]O) (Guler, Sarioglu 2014; Ersoy et al.
Dachiardite, a rare zeolite, was first described from San Piero in Campo, Elba, Italy by D'Achiardi in 1906.
Further investigations revealed that it was a "sodium-rich dachiardite" (Bonardi et al., 1981), now dachiardite-Na.
(1975) Sodium-rich dachiardite from Alpe de Siusi, Italy.
56 (1992), 125 Svetlozarite (= dachiardite
) Coombs et al.: Can.
The rest of the book is dedicated to the descriptive mineralogy of Elba, the type locality of seven species (elbaite, ilvaite, poilucite, dachiardite, bonattite, minguzzite and the recently described uranopolycrase).
Most of these are well known, such as elbaire, beryl, dachiardite, orthoclase, petalite, pollucite and spessartite.
The type localities for no less than eight of the approximately 49 known zeolites (barrerite, dachiardite
, gismondine, merlinoite, montesommaite, phillipsite, pollucite, and willhendersonite) are within its borders.